$.ajax({
        url: 'xxxxxxxxxxxxxxxxx',
        type: 'POST',
        data: {
            result: JSON.stringify("Мой домен")
        },
        success: function(otvet) {
          console.log(otvet.length);
          console.log(otvet);
          for (let i = 0; i < otvet.length; i++) {
            pipe_name = otvet[i]['pipelines_name'];
            pipe_id = otvet[i]['pipelines_id'];
          }
        }
      });